Front Loader Wire Mechanism for Unobstructed Operator View
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Solution Overview
Problem
The existing front loader designs interfere with the operator's front view due to the mechanism used to hold the bucket's attitude, which affects the operational efficiency and safety.
Innovation Solution
A front loader design that includes a boom, a bucket supported by a pivotal shaft, a boom cylinder, a bucket cylinder, a control valve, and a wire mechanism connecting a movable member to the control valve, allowing the bucket to perform shoveling and dumping movements while preventing the mechanism from obstructing the operator's view by switching the control valve states based on the boom's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanism with linkage members extending along the boom is used to hold the bucket attitude, then the bucket attitude is held effectively, but the mechanism interferes with the operator's front view
Solution Approach 1:
The patent extracts the synchronization mechanism from the traditional linkage member configuration and relocates it to a wire-based system positioned behind the boom. This removes the obstructing elements from the operator's front view while preserving the bucket attitude holding function through the wire connecting the first movable member to the control valve
Solution Approach 2:
The patent repositions the synchronization mechanism from a front-facing linkage configuration to a rear-positioned wire-based system. By changing the spatial dimension and arrangement of the mechanism, it achieves the same functional result without obstructing the operator's forward view
2Reliability
If linkage members are arranged along the boom to prevent bucket contents from falling, then the bucket attitude is controlled, but the complexity of the mechanism increases
Solution Approach 1:
The patent replaces the traditional mechanical linkage members with a wire-based synchronization mechanism. This substitution simplifies the overall structure by using a more compact wire system instead of multiple extending linkage members, while still achieving the required bucket attitude control through connection to the control valve
Data Source
AI summary
A front loader includes a boom, a first pivotal shaft disposed on a tip portion of the boom, a bucket supported by the first pivotal shaft to be capable of performing a shoveling movement and a dumping movement, a boom cylinder to swing the boom, a bucket cylinder to move the bucket to make the bucket perform the shoveling movement and the dumping movement, a control valve to be switched to any one of a first state supplying an operation fluid to the bucket cylinder and a second state stopping supplying the operation fluid to the bucket cylinder, a first movable member to turn around the first pivotal shaft in accordance with the movement of the bucket, and a wire connecting the first movable member to the control valve.